10 check-ins related to "winNativeHeap"

In the MSVC makefile, allow symbols to be enabled without NDEBUG defined. Also, for the win32lock test, make sure the database is closed prior to shutdown.
Closed-Leaf
check-in: 5ed7633d user: mistachkin tags: winNativeHeap

In the MSVC makefile, support several levels of debugging, each one building on the previous. Also, add comment about the SQLITE_WIN32_MALLOC_VALIDATE macro.
check-in: 4257e9b7 user: mistachkin tags: winNativeHeap